supplementary angles add up to 180°.
x = measure of such angle
x + 20 = measure of her sibling.
since "x" has 20 less than her sibling, then clearly her sibling has to have 20 more than "x".

Given the function f(x)=x^2+5x+5 , to get the zeros we solve using quadratic formula;
x=[-b(+or-) sqrt(b^2-4ac)]/(2a)
from our function;
a=1,b=5, c=5
thus,
x=[-5(+or-)sqrt(5^2-4*1*5)]/(2*1)
x=[-5(+or-)sqrt(25-20)]/2
x=[-5+/-sqrt(5)/2
The answer is option C
Answer:
Square is a kind of kite.
Step-by-step explanation:
Consider the provided information.
Kite is a flat shape with two pairs of sides and each pair is made of two adjacent sides that are equal in length.
Square has four equal sides and four equal angles of 90°
Square is a kind of kite because it has two pairs of equal adjacent side.
Hence, square is a kind of kite.